2006-2011 Honda Civic SI Air Intake Duct
Specifications Part numbers, fitment codes and shipping
- Brand
- K2 Industries
- Speedzone SKU
- K2-6685-HON-006-AD
- Manufacturer part number
- K2-6685-HON-006-AD
- UPC
- OEM-AD-007
- Category
- Air Ducts
- Shipping weight
- 2.0 lb
2006-2011 Honda Civic SI Air Intake Duct
Engineered to feed cooler, denser air directly into your SI's intake manifold. This hard panel construction duct replaces the factory airbox restriction and bolts to existing mounting points—no fabrication required. Designed for bolt-on installation with basic hand tools.
Key Features
- Cold-air path design - Pulls intake temperature down for measurable gains in responsiveness and power delivery
- OEM fitment precision - Engineered to factory attachment points; eliminates guesswork on alignment
- Hard panel construction - Rigid structure resists flex and maintains intake seal under boost or high RPM
Specs
- Hard panel construction
- Single intake duct assembly
- New condition
Whats Included
- Air intake duct assembly
Frequently Asked Questions
Will this bolt to my factory intake manifold without modification?
Yes. This duct connects at factory mounting points—no drilling, welding, or custom fabrication needed. Test-fit before final tightening to confirm clearance at the intake trumpet.
Do I need to seal the joints where the duct meets the intake?
Depends on your setup. If you're running stock intake components, factory tolerances should handle it. For turbo or supercharger builds, you may want silicone sealant at connection points to prevent boost leaks—check your tuner's recommendation.
Can I reuse the intake filter element from my old airbox?
Not without adapter work. This duct uses a different filter mounting interface than the OEM airbox. You'll need a filter element sized and threaded for this intake's inlet—confirm diameter before ordering.
Full details on shipping times, returns, warranty and cancellations are on our policy page.
Market conditions after 2020 have changed the landscape of automotive parts. Although we stock thousands of items across multiple warehouses and distribution channels, back-orders are unavoidable in today's market. If you need a product quickly, email, message or call us to check availability so we can explore your options.
Email Sales@Speedzoneweb.com
Call 407-846-8430
Text 407-749-6314
Answers to common questions are on our FAQ page.
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